Extreme Networks ExtremeWare 7.2e Installation And User Manual page 26

Summit 400-48t Switch Overview and Installation
Table 6: LX mini-GBIC specifications
Parameter
Transceiver
Optical output power
Center wavelength
Receiver
Optical input power sensitivity
Optical input power maximum
Operating wavelength
General
Total system budget
Total optical system budget for the LX mini-GBIC is 13.5 dB. Measure cable plant losses with a 1310 nm
light source and verify this to be within budget. When calculating the maximum distance attainable
using optical cable with a specified loss per kilometer (for example 0.25 dB/km) Extreme Networks
recommends that 3 dB of the total budget be reserved for losses induced by cable splices, connectors,
and operating margin. Thus, 10.5 dB remains available for cable induced attenuation. There is no
minimum attenuation or minimum cable length restriction.
ZX Mini-GBIC Specifications
Table 7 describes the specifications for the ZX mini-GBIC.
Table 7: ZX mini-GBIC specifications
Parameter
Transceiver
Optical output power
Center wavelength
Receiver
Optical input power sensitivity
Optical input power maximum
Operating wavelength
Long Range GBIC System Budgets
Measure cable plant losses with a 1550 nm light source and verify this to be within budget. When
calculating the maximum distance attainable using optical cable with a specified loss per kilometer (for
example 0.25 dB/km), Extreme Networks recommends that 3 dB of the total budget be reserved for
losses induced by cable splices, connectors, and operating margin. Figure 3 shows the total optical
system budget between long range GBICs in various end-to-end combinations (ZX, ZX Rev 03, LX70,
and LX100).
NOTE
The ZX mini-GBIC is equivalent to the ZX Rev 03 GBIC.
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Minimum Typical
–9.5 dBm
1275 nm 1310 nm
–23 dBm
1270 nm
Minimum Typical
–2 dBm 0 dBm
1540 nm 1550 nm
–23 dBm
1540 nm 1550 nm
Maximum
–3 dBm
1355 nm
–3 dBm
1355 nm
13.5 dB
Maximum
3 dBm
1570 nm
–3 dBm
1570 nm
ExtremeWare 7.2e Installation and User Guide